Magento 2 place order error

Question

I am getting below error in place order with "google pay"

[2021-06-30 12:00:06] report.CRITICAL: Error message {"exception":"[object] (Magento\Framework\Exception\LocalizedException(code: 0): The requested qty is not available at Magento2/vendor/magento/module-quote/Model/Quote.php:1711)"} []

I have checked a product has a qty = 1, then also error appearing any thoughts ? what can be the cause of the issue ?

The quoterepo is already instantiated above

$quote = $this->quoteRepository->get($cartId);

& then it again uses "quoteRepository" to save quote $this->quoteRepository->save($quote), it should used the same instance which loaded before.

Answer 1

The quoterepo is already instantiated above in code like

$quote = $this->quoteRepository->get($cartId);

& then it again uses "quoteRepository" to save quote like $this->quoteRepository->save($quote), it should used the same instance which loaded before.

Using $quote->save();

error gone.